Subchase for typographic numbering machines



12, 1936. HOFFMAN ET AL 2,040,175 SUBCHASE FOR TYPOGRAPHIC NUMBER-ING MACHINES Fued Jan. 14, 1955 BY 15 jacum/ [7 %RNEY.

I INV NTORS MM W w Patented May 12, 1936 PATEN'T OFFICE SUBCHASE FOR TYPOGRAPHIC NUMBERING MACHINES Michael Hoffman, San Francisco, and Ben Jackson, San Bruno, Calif.

Application January 14, 1933, Serial No. 651,824

4 Claims;

This invention relates to improvements in printing apparatus and particularly to improved means for' removably locking numbering machines or other small independent bodies in printing presses.

An object of our invention is to provide improved locking means for use in removably holding in a secure position within a printing press form, a numbering machine or other small independent printing member.

Another object of our invention is to provide an improved sub-chase for printing purposes, having novel locking means associated therewith for securely but removably holding a numbering machine or other printing device in a fixed position Within a printing press form.

Since numbering machines commonly used in printing stock certificates, checks, etc., must be frequently removed from their type forms during a press run because of reoccurring skips or other irregularities, an enclosing sub-chase is needed whereby the removal may be accomplished without the necessity of unlocking the entire type form in which the numbering machine is located. It is of considerable importance in order to save time, as well as to prevent a disturbance of the prearranged relationship of the type within the press form, that provision be made for conveniently removing and replacing a damaged numbering machine without interfering with the press form as a whole or with the type bodies in the form. It is to accomplish these important objects that we have invented a rigid sub-chase having easily manipulated looking mechanism associated therewith for releasably holding a numbering machine or other printing member within its confines.

Other objects or advantages more or less apparent will present themselves or will be specifically pointed out in the description of our invention which is to follow.

In the accompanying drawings:

Fig. 1 is a top plan view of a sub-chase embodying our invention, showing a numbering machine mounted and locked therein;

Fig. 2 is a top plan view of the sub-chase and its associated locking mechanism, showing the numbering machine removed;

Fig. 3 is a section taken on the line 3-3 of Fig. 2; and

Fig. 4 is a section taken on the line 4-4 of Fig. 2.

Referring to the drawing, the numeral I designates a rectangular shaped sub-chase or frame comprised of side members 2 and end members 3.

The" sub-chase is constructed preferably from steel or other suitable material and is of standard size capable of accommodating a numberingmachine 4 of the kind commonly employed in the printing art. The numbering machine 4 embodies the usual construction common to devices of this kind, including upright end members 5 and B which constitute the frame work upon which the numbering wheels and plunger are mounted.

The mechanism we preferably employ for look-- ing the numbering machine 4 inside the subchase consists of a centrally disposed threaded stud l secured to and extending inwardly from one of the end members 3 of the sub-chase, together with a wheel 8 rotatably and screwably mounted on the said stud. The periphery of the wheel 8 is provided with notches 9 and holes l0 within which a tool I I may be inserted to facilitate the turning of the said wheel.

The locking of the numbering machine 4 within the sub-chase may be accomplished by rotating the wheel 8 in .a direction whereby it is moved inwardly against the frame of the numbering machine. The use of the tool II in turning the wheel 8 enables the operator to readily cause the numbering machine to be firmly clamped in a secure position with one side of its frame bearing against an end member 3 of the sub-chase and the opposite side of its said frame engaging with the said wheel. The distribution of the holes 18 and notches 9 around the periphery of the wheel 8 enables an operator to readily bring the tool into proper operating engagement with the said wheel at all times, irrespective of the position of the form within which the device is mounted. The rotation of the wheel 8 in a reverse direction causes the unlocking of the numbering machine, thereby permitting the convenient removal of the said numbering machine without unlocking the press form or in any manner disturbing the relative positions of the subehase I and the prearranged type bodies located in the form.

While we have herein disclosed a construction we consider to be the preferred embodiment of our invention, we appreciate the fact that changes may be made in regard to details of construction; therefore, we do not wish to be limited to the precise structure shown, as modifications may readily be made, particularly in the design of the locking mechanism which may include a cam arrangement instead of the particular means herein illustrated and described. It is to be understood that the appended claims shall define the limits our invention may assume rather than exact disclosures herein made.

Having described our invention what we claim 1s:

1. The combination with a numbering machine and its frame, and external casing in which the said numbering machines frame is loosely and removably fitted, of securing means including a fixed threaded stud extending inwardly from a side of the casing, and a wheel screwably mounted on the stud and adapted to be screwed against the frame of the numbering machine, whereby the numbering machine frame may be clamped between the said wheel and a side of the casing.

2. The combination with a numbering machine and its frame, a sub-chase within which the frame of the numbering machine loosely and removably fits, of means for securing the numbering machine inside the sub-chase including a stud secured to and extending inwardly from a side of the sub-chase, and screwable means mounted on the stud and adapted to be moved into engagement with the frame of the numbering machine positioned in the sub-chase.

3. The combination with a numbering machine and its frame, a sub-chase within which the frame of the numbering machine loosely and removably fits, of means for securing the numbering machine within the sub-chase including a fixed threaded stud extending inwardly from a side of the sub-chase, and a wheel screwably mounted on the stud, the said wheel being capable of being rotated on the threaded stud so it is moved into engagement with the frame of the numbering machine, the periphery of the wheel having holes distributed therearound.

4. The combination with a numbering machine and its frame, of a sub-chase within which the frame of the numbering machine loosely and removably fits, and a rotatable clamping wheel carried by the sub-chase and interposed between the frame of the numbering machine and a side of the sub-chase for maintaining the numbering machine in a locked position inside the sub-chase.

MICHAEL HOFFMAN. BEN JACKSON. 

